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Illuminant assembly

A light source component and light source technology, applied in the direction of light source, electric light source, optical components, etc., can solve the problems affecting the scanning speed, scanning results, and scanner volume, etc., to reduce volume, reduce secondary reflection, reduce interference effect

Active Publication Date: 2013-05-15
敦南科技(无锡)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the image sensor, the light source is very important, because the light experienced by the CCD / CMOS image sensor all comes from the image sensor itself, the light source is impure or color cast, that is, the uniformity of the light source is not enough, It will directly affect the scanning results. The insufficient brightness of the light source will affect the scanning speed, and the volume of the light source will also affect the volume of the scanner.

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] like Figure 10-12 As shown, the present invention discloses a light source assembly 4, including a light-emitting chip 1, a light guide plate 2 and a light source housing 3, the pins of the light-emitting chip 1 connected to an external control circuit are pins of a printed circuit board, and the light guide plate 2 has A strip of white ink composed of different lengths, widths and spacings arranged horizontally, the top of the light source housing 3 is painted black, and light emitting chips 1 are set on both ends of the light source housing 3 . The light emitting chip 1 uses a photodiode as a light source, and the light guide plate 2 is plugged in the light source housing 3, and the material of the light source housing 3 is polycarbonate resin.

[0024] like Figure 1-3 As shown, the external pins of the light-emitting chip 1 are pins on the printed circuit...

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PUM

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Abstract

Disclosed is an illuminant assembly. The illuminant assembly comprises light-emitting chips, a light guide plate and an illuminant shell. Pins of the light-emitting chips are connected with an external control circuit, and are pins of a printed-circuit board. The light guide plate is provided with a strip of white printing ink, wherein the strip of the white printing ink is combined by different lengths, widths and separation distances in a horizontal arrangement mode. The upper face of eth illuminant shell is painted black. The light-emitting chips are respectively sleeved on two ends of the illuminant shell. The illuminant assembly is small in size and good in intensity and evenness of light.

Description

technical field [0001] The invention relates to a light source assembly, more particularly to a light source assembly with small volume and good light intensity and uniformity. Background technique [0002] When the image sensor starts to scan, the internal light source emits light to illuminate the object to be scanned, generating reflected light that represents image features. For the image sensor, the light source is very important, because the light experienced by the CCD / CMOS image sensor all comes from the image sensor itself, the light source is impure or color cast, that is, the uniformity of the light source is not enough, It will directly affect the scanning result, the insufficient brightness of the light source will affect the scanning speed, and the volume of the light source will also affect the volume of the scanner. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a light source assembly with a ...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V19/00F21V8/00F21Y101/02
Inventor 席文杰张景超
Owner 敦南科技(无锡)有限公司